Supercapacitors have gained e wide attention because of high power density, fast charging and discharging, as well as good cycle performance. Recently, expanded graphite (EG) has been widely investigated as an effective electrode material for supercapacitors owing to its excellent physical, chemical, electrical, and mechanical properties. Based on charge storage mechanism, supercapacitors have been divided into symmetric, asymmetric, and hybrid supercapacitors. Here, we review the study progress of EG-based materials to be electrode materials. Furthermore, we discuss the application prospects and challenges of EG-based materials in supercapacitors.

We explored effective solutions for enhancing the operational stability of ZIBs by designing hydrogel electrolytes that protect zinc anodes, cathodes, and electrolytes.

In this review, we evaluate and summarize the application of expanded graphite-based materials in rechargeable batteries, including alkaline ions (such as Na⁺, K⁺) storage and multivalent ion (such as Mg²⁺, Zn²⁺, Ca²⁺ and Al³⁺) storage batteries.

This review of the recent research progress of manganese dioxide-based zinc ion batteries (ZIBs), and the reaction mechanism, electrochemical performance, and challenges.

We review the recent research progress in 2D materials and their composites in the pursuit of zinc ion hybrid supercapacitors, focusing on the possible charge storage mechanism of zinc ion hybrid supercapacitors.